Intelligent switch circuit and wall intelligent switch

Abstract

According to the intelligent switch circuit and the wall intelligent switch provided by the embodiment of the invention, the voltage value at the power supply input end is acquired through the voltage acquisition circuit, and the controller sends the driving signal to the voltage regulation circuit through the second pin under the condition that the acquired voltage value is lower than the first preset voltage value; and the voltage adjusting circuit is driven by the driving signal to adjust the voltage value at the partial voltage detection pin so as to change the on-off time of the switching device and further increase the voltage duration at the power supply input end. The capability of the intelligent switch for obtaining current from the circuit is improved, and the compatibility between the intelligent switch and the intelligent lamp is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of intelligent control technology, and in particular to an intelligent switch circuit and a wall intelligent switch. Background Art

[0002] With the development of smart home technology, smart lamps can connect to the Internet and support voice, APP or device linkage control. They not only have the basic function of flexibly controlling turning on and off lights, but also can adjust brightness and color temperature, which greatly improves people's lighting needs and is increasingly widely used in people's daily lives.

[0003] In existing smart lighting systems, smart lamps are usually connected to the circuit using a single live wire connection. In this connection method, when the physical switch is in the off state, the power supply to the smart lamp will be cut off, causing the smart lamp to be offline and unable to respond to voice and APP control commands. To solve this problem, a common solution is to use smart lamps with smart switches. Even if the smart lamp is turned off, the smart switch can control the switch of the smart lamp through the cloud or local hub.

[0004] However, there are compatibility issues between smart switches and smart lamps. When the brightness of smart lamps is adjusted to a very low level or 0, the current on the line will become very small, causing the smart switch to be unable to obtain enough power, which in turn causes the linkage between the smart switch and the smart lamp to fail. In order to cope with this situation, the rated power of smart lamps is generally required to be no less than 3W. This phenomenon is known in the industry as a compatibility issue between smart switches and smart lamps. This compatibility issue not only restricts the development of the smart lighting industry, but also affects the user experience, and has not been effectively resolved so far. Summary of the invention

[0005] The embodiments of the present disclosure provide a smart switch circuit and a smart wall switch, which are used to improve the compatibility between the smart switch and the smart lamp.

[0006] Based on the above problems, in the first aspect, an intelligent switch circuit is provided, comprising: an electric control switch, a switch device, a switch connection power taking circuit, a controller, a voltage collection circuit and a voltage regulating circuit are arranged between two wiring terminals;

[0007] The switch connecting the power taking circuit comprises: the switch connecting the power taking chip;

[0008] One end of the electronically controlled switch is connected to one end of the two wiring terminals; the other end of the electronically controlled switch is respectively connected to one end of the switch device, the power pin of the power-taking chip connected to the switch, one end of the voltage collection circuit and the power input end of the controller;

[0009] The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip;

[0010] The switch connects the voltage division detection pin of the power taking chip to one end of the voltage regulating circuit;

[0011] The other end of the voltage collection circuit is connected to the first pin of the controller;

[0012] The other end of the voltage regulating circuit is connected to the second pin of the controller;

[0013] The controller is used to receive the voltage value at the power input terminal collected by the voltage collection circuit through the first pin; and send a driving signal to the voltage regulation circuit through the second pin when the collected voltage value is lower than the first preset voltage value;

[0014] The voltage regulating circuit is used to adjust the voltage value at the voltage dividing detection pin of the switch connected to the power-taking chip under the drive of the driving signal, so as to change the on-off time of the switching device and thereby increase the voltage duration at the power input terminal.

[0015] In combination with the first aspect, in a possible implementation manner, the voltage collection circuit includes: a first voltage dividing resistor and a second voltage dividing resistor;

[0016] One end of the first voltage-dividing resistor is connected to the power input terminal; the other end of the first voltage-dividing resistor is connected to the first pin;

[0017] One end of the second voltage-dividing resistor is connected to the other end of the first voltage-dividing resistor; the other end of the second voltage-dividing resistor is set to be at the same potential.

[0018] In combination with the first aspect, in a possible implementation manner, the switch connected power taking circuit further includes an auxiliary circuit; the auxiliary circuit includes: a third voltage dividing resistor and a fourth voltage dividing resistor; the voltage regulating circuit includes a first regulating resistor; the driving signal includes a low level signal;

[0019] One end of the third voltage-dividing resistor is connected to the other end of the electronically controlled switch, and the other end of the third voltage-dividing resistor is connected to the voltage-dividing detection pin;

[0020] One end of the fourth voltage-dividing resistor is connected to the other end of the third voltage-dividing resistor, and the other end of the fourth voltage-dividing resistor is set to an equal potential;

[0021] One end of the first regulating resistor is connected to the voltage division detection pin; the other end of the first regulating resistor is connected to the second pin of the controller;

[0022] The controller is used for outputting a low-level signal through the second pin when the collected voltage value is lower than the first preset voltage value, so that the first regulating resistor and the fourth voltage-dividing resistor are connected in parallel, and the divided voltage value at the voltage-dividing detection pin is reduced, thereby controlling the cut-off time of the switching device to increase, thereby increasing the voltage duration at the power input terminal;

[0023] The controller is also used to set the second pin to a high impedance state when the collected voltage value is greater than or equal to the first preset voltage value, and the voltage division of the third voltage-dividing resistor and the fourth voltage-dividing resistor is restored to normal, thereby restoring the voltage duration at the power input terminal.

[0024] In combination with the first aspect, in a possible implementation, the switch is connected to the power-taking chip, and is used to control the switch device to be cut off through the control pin if the voltage value at the voltage-dividing detection pin is less than the second preset voltage value when the first adjustment resistor and the fourth voltage-dividing resistor are connected in parallel; if the voltage value at the voltage-dividing detection pin is greater than or equal to the third preset voltage value, the switch device is controlled to be turned on through the control pin.

[0025] In combination with the first aspect, in a possible implementation manner, a resistance value formed by the first regulating resistor and the fourth voltage-dividing resistor being connected in parallel is inversely proportional to the cut-off time of the switching device.

[0026] Based on the above problem, in a second aspect, an intelligent switch circuit is provided, comprising: an electric control switch, a switch device, a switch connection power taking circuit, a controller, a voltage collection circuit and a voltage regulating circuit are arranged between two wiring terminals;

[0027] The switch connecting the power taking circuit comprises: the switch connecting the power taking chip;

[0028] One end of the electric control switch is connected to one end of the two wiring terminals; the other end of the electric control switch is respectively connected to one end of the switch device, the power pin of the switch connected to the power chip and the power input end of the controller;

[0029] The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip;

[0030] The switch connects the voltage division detection pin of the power taking chip to one end of the voltage regulating circuit and one end of the voltage collecting circuit;

[0031] The other end of the voltage collection circuit is connected to the first pin of the controller;

[0032] The other end of the voltage regulating circuit is connected to the second pin of the controller;

[0033] The controller is used to receive the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip collected by the voltage collection circuit through the first pin, and send a driving signal to the voltage regulation circuit through the second pin when the collected voltage value is lower than a fourth preset voltage value;

[0034] The voltage regulating circuit is used to adjust the voltage value at the voltage dividing detection pin of the switch connected to the power-taking chip under the drive of the driving signal, so as to change the on-off time of the switching device and thereby increase the voltage duration at the power input terminal.

[0035] In combination with the first aspect and the second aspect, in a possible implementation manner, the present invention further includes: a protection circuit; the protection circuit includes: a common diode, a protection resistor, and a voltage regulator diode;

[0036] One end of the anode of the common diode is connected to the other end of the electric control switch; one end of the cathode of the common diode is connected to one end of the protection resistor; the other end of the protection resistor is connected to one end of the cathode of the voltage-stabilizing diode; one end of the anode of the voltage-stabilizing diode is connected to the voltage-dividing detection pin of the power-taking chip connected to the switch;

[0037] The protection circuit is used to control the voltage value at the voltage divider detection pin to a third preset voltage value when the second pin of the controller continuously outputs a low-level signal so that the voltage regulator diode reaches the Zener voltage, thereby increasing the conduction time ratio of the switching device and reducing the voltage duration at the power input terminal; the size of the Zener voltage is determined according to the voltage tolerance capacity at the power input terminal.

[0038] Based on the above problems, in a third aspect, an intelligent switch circuit is provided, comprising: an electric control switch, a switch device, a switch connection power taking circuit, a controller, a voltage regulating circuit and a protection circuit are arranged between two wiring terminals;

[0039] The switch connecting the power taking circuit comprises: the switch connecting the power taking chip;

[0040] One end of the electric control switch is connected to one end of the two wiring terminals; the other end of the electric control switch is respectively connected to one end of the switch device, the power pin of the switch connected to the power chip, one end of the protection circuit and the power input end of the controller;

[0041] The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip;

[0042] The switch connects the voltage division detection pin of the power taking chip to one end of the voltage regulating circuit and the other end of the protection circuit;

[0043] The other end of the voltage regulating circuit is connected to the second pin of the controller;

[0044] The controller is used to send a driving signal to the voltage regulating circuit through the second pin;

[0045] The voltage regulating circuit is used to adjust the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip under the drive of the driving signal, so as to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal;

[0046] The protection circuit is used to change the on-off time of the switching device and reduce the voltage duration at the power input terminal by maintaining the voltage value at the voltage division detection pin when the voltage at the power input terminal continues to increase.

[0047] Based on the above problems, in a fourth aspect, an intelligent switch circuit is provided, comprising: an electric control switch, a switch device, a switch connection power taking circuit, a controller and a protection circuit are arranged between two wiring terminals;

[0048] The switch connecting the power-taking circuit includes: the switch connecting the power-taking chip and its auxiliary circuit;

[0049] One end of the electronically controlled switch is connected to one end of the two wiring terminals; the other end of the electronically controlled switch is respectively connected to one end of the switch device, one end of the protection circuit, the power pin of the switch connected to the power chip, and the power input end of the controller;

[0050] The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip;

[0051] The other end of the protection circuit is connected to the voltage division detection pin of the power taking chip connected to the switch;

[0052] The auxiliary circuit comprises: a third voltage-dividing resistor and a fourth voltage-dividing resistor; one end of the third voltage-dividing resistor is connected to the other end of the electronically controlled switch, and the other end of the third voltage-dividing resistor is connected to the voltage-dividing detection pin; one end of the fourth voltage-dividing resistor is connected to the other end of the third voltage-dividing resistor, and the other end of the fourth voltage-dividing resistor is set to an equal potential; the resistance value of the fourth voltage-dividing resistor is lower than that of a conventional design, and / or the fourth voltage-dividing resistor is connected in parallel with a resistor, and the resistance value after parallel connection is lower than that of the conventional design;

[0053] The auxiliary circuit is used to adjust the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip, so as to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal;

[0054] The protection circuit is used to change the on-off time of the switching device and reduce the voltage duration at the power input terminal by maintaining the voltage value at the voltage division detection pin when the voltage at the power input terminal continues to increase.

[0055] In combination with the third aspect and the fourth aspect, in a possible implementation manner, the protection circuit includes: a common diode, a protection resistor, and a voltage regulator diode;

[0056] An anode end of the common diode is connected to the other end of the electronically controlled switch; a cathode end of the common diode is connected to one end of the protection resistor; the other end of the protection resistor is connected to a cathode end of the voltage-stabilizing diode; an anode end of the voltage-stabilizing diode is connected to the voltage-dividing detection pin;

[0057] The protection circuit is used to control the voltage value at the voltage divider detection pin to a third preset voltage value when the voltage regulator diode reaches the Zener voltage, increase the conduction time ratio of the switching device, and reduce the voltage duration at the power input terminal; the size of the Zener voltage is determined according to the voltage tolerance capacity at the power input terminal.

[0058] In a fifth aspect, a smart wall switch is provided, comprising: a switch panel, wherein the wall covered by the switch panel is provided with a smart switch control circuit as provided in the first aspect and / or the second aspect / or the third aspect / or the fourth aspect, or in combination with any possible implementation of the first aspect and / or the second aspect / or the third aspect / or the fourth aspect.

[0059] The beneficial effects of the embodiments of the present disclosure include:

[0060] The embodiment of the present disclosure provides a smart switch circuit and a wall smart switch. The voltage value of the power input terminal is collected by the voltage collection circuit. When the collected voltage value is lower than the first preset voltage value, the controller sends a driving signal to the voltage adjustment circuit through the second pin. The voltage adjustment circuit, driven by the driving signal, adjusts the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal. The ability of the smart switch to obtain current from the line is improved, thereby improving the compatibility between the smart switch and the smart lamp.

[0061] The embodiment of the present disclosure provides a smart switch circuit and a second smart wall switch. The voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip is collected by the voltage collection circuit. When the collected voltage value is lower than the fourth preset voltage value, the controller sends a driving signal to the voltage-adjusting circuit through the second pin. The voltage-adjusting circuit, driven by the driving signal, adjusts the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal. The ability of the smart switch to obtain current from the line is improved, thereby improving the compatibility between the smart switch and the smart lamp.

[0062] The third intelligent switch circuit and wall intelligent switch provided by the embodiment of the present disclosure, under the driving of the second pin of the controller continuously outputting the driving signal, the voltage regulating circuit regulates the voltage value at the voltage dividing detection pin of the switch connected to the power chip to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal. The ability of the intelligent switch to obtain current from the line is improved, thereby improving the compatibility between the intelligent switch and the intelligent lamp. And when the voltage value at the power input terminal continues to increase, the protection circuit changes the on-off time of the switch device by maintaining the voltage value at the voltage dividing detection pin, reduces the voltage duration at the power input terminal, and protects the voltage value at the power input terminal within a safe range.

[0063] The fourth smart switch circuit and the fourth smart wall switch provided by the embodiment of the present disclosure adjust the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip by setting the fourth voltage-dividing resistance value of the auxiliary circuit lower than the conventional design, so as to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal. The ability of the smart switch to obtain current from the line is improved, thereby improving the compatibility between the smart switch and the smart lamp. And when the voltage at the power input terminal continues to rise, the protection circuit changes the on-off time of the switch device by maintaining the voltage value at the voltage-dividing detection pin, reduces the voltage duration at the power input terminal, and protects the voltage value at the power input terminal within a safe range. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 This is one of the structural schematic diagrams of an intelligent switch circuit provided in an embodiment of the present disclosure;

[0065] Figure 2 One of the schematic diagrams of the relationship between the AC waveform and the PWM signal provided in the embodiment of the present disclosure;

[0066] Figure 3 The second structural diagram of an intelligent switch circuit provided by an embodiment of the present disclosure;

[0067] Figure 4The second schematic diagram of the relationship between the AC waveform and the PWM signal provided in the embodiment of the present disclosure;

[0068] Figure 5 The third structural diagram of an intelligent switch circuit provided by an embodiment of the present disclosure;

[0069] Figure 6 A fourth structural diagram of an intelligent switch circuit provided in an embodiment of the present disclosure;

[0070] Figure 7 A fifth structural diagram of an intelligent switch circuit provided in an embodiment of the present disclosure;

[0071] Figure 8 A sixth structural diagram of an intelligent switch circuit provided in an embodiment of the present disclosure;

[0072] Fig. 9 The seventh structural diagram of an intelligent switch circuit provided by an embodiment of the present disclosure;

[0073] Fig.10 The eighth structural diagram of an intelligent switch circuit provided by an embodiment of the present disclosure; DETAILED DESCRIPTION

[0074] The embodiments of the present disclosure provide a smart switch circuit and a wall smart switch. The preferred embodiments of the present disclosure are described below in conjunction with the drawings of the specification. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure. In addition, the embodiments and features in the embodiments of the present application can be combined with each other if there is no conflict.

[0075] The present disclosure provides an intelligent switch circuit. Figure 1 As shown, it includes: an electric control switch 101, a switch device 102, a switch-connected power-taking circuit 103, a controller 104, a voltage collection circuit 105 and a voltage regulation circuit 106 are arranged between two connection terminals L and N; the switch-connected power-taking circuit 103 includes: a switch-connected power-taking chip 1031 (not shown in the figure);

[0076] One end of the electric switch 101 is connected to one end N of the two wiring terminals; the other end of the electric switch 101 is respectively connected to one end of the switch device 102, the power pin of the switch connected power chip 1031, one end of the voltage collection circuit 105 and the power input end of the controller 104;

[0077] The other end of the switch device 102 is connected to the other end L of the two wiring terminals; the control end of the switch device 102 is connected to the control pin of the switch connected power chip 1031;

[0078] The switch connects the voltage division detection pin of the power taking chip 1031 to one end of the voltage regulating circuit 106;

[0079] The other end of the voltage collection circuit 105 is connected to the first pin of the controller 104;

[0080] The other end of the voltage regulating circuit 106 is connected to the second pin of the controller 104;

[0081] The controller 104 is used to receive the voltage value at the power input terminal V1 collected by the voltage collection circuit 105 through the first pin; and when the collected voltage value is lower than the first preset voltage value, send a driving signal to the voltage adjustment circuit 106 through the second pin;

[0082] The voltage regulating circuit 106 is used to adjust the voltage value at the voltage dividing detection pin of the switch connected to the power chip 1031 under the drive of the driving signal, so as to change the on-off time of the switch device 102, thereby increasing the voltage duration at the power output end.

[0083] In the application scenario of single live wire connection, in order to power the controller 104 of the intelligent switch, a switch is usually set to connect the power circuit 103 and a switch to disconnect the power circuit ( Figure 1 (omitted and not shown). During implementation, the switch-connected power-taking circuit 103 is used to supply power to the controller 104 when the electric-controlled switch 101 is connected (i.e., when the load is working). The corresponding switch-disconnected power-taking circuit is used to supply power to the controller 104 when the electric-controlled switch 101 is disconnected (i.e., when the load stops working). When the electric-controlled switch 101 is connected, illustratively, in the positive half cycle of the alternating current, the voltage value of the other end L of the two terminals is higher than the voltage value of one end N of the two terminals. At this time, the switch device 102 is turned on and no power is supplied to the controller 104; in the negative half cycle of the alternating current, the voltage value of the other end L of the two terminals is lower than the voltage value of one end N of the two terminals. The switch power-taking circuit 103 controls the on or off state of the switch device 102. When the switch device 102 is turned on, no power is supplied to the controller 104. When the switch device 102 is turned off, power is supplied to the controller 104.

[0084] The switch power circuit 103 controls the on or off state of the switch device 102 in the following manner: For example, the switch power chip 1031 can be a BP8005 chip, and the BP8005 chip includes a power pin VIN, a voltage division detection pin FB, and a control pin GATE. The switch power chip 1031 sets the frequency and duty cycle of the PWM signal output by the control pin GATE, such as Figure 2As shown, the frequency of the PWM signal is consistent with the frequency of the alternating current, and the duty cycle determines the proportion of time that the high level state of the pulse lasts in one cycle. The switch connected to the power chip 1031 presets two voltage thresholds. The control pin GATE is connected to the control end of the switch device 102. When the voltage value at the voltage divider detection pin FB is greater than or equal to the first voltage threshold, the control pin GATE outputs a high level to control the switch device 102 to turn on; when the voltage value at the voltage divider detection pin FB is less than the second voltage threshold, the control pin GATE outputs a low level to control the switch device 102 to turn off.

[0085] After the smart lamp is connected in series with the smart switch, when the smart lamp is turned on and the brightness is normal, the current between the two terminals L and N is large enough, and the smart switch can obtain sufficient current from the line. However, when the brightness of the smart lamp is gradually adjusted to a very low level or 0, the load power of the smart lamp gradually decreases, and the two terminals L and N are not enough to provide sufficient current. The voltage value at the power input terminal V1 will also gradually decrease until it cannot supply power to the controller 104, which leads to the failure of the linkage between the smart switch and the smart lamp. This is the compatibility problem between the smart switch and the smart lamp. Therefore, how to improve the ability of the smart switch to obtain current from the line when the brightness of the smart lamp is gradually adjusted to a very low level or 0 is the key to improving the compatibility between the smart switch and the smart lamp.

[0086] In an embodiment of the present disclosure, a circuit is provided for increasing the voltage duration at the power input terminal and improving the ability of the smart switch to obtain current from the line when the brightness of the smart lamp is gradually adjusted to a very low level or to 0.

[0087] During implementation, a voltage collection circuit 105 is connected between the power input terminal V1 and the first pin of the controller 104 to obtain the change of the voltage value at the power input terminal V1 in real time. A voltage adjustment circuit 106 is connected between the second pin of the controller 104 and the voltage detection pin FB of the switch-connected power-taking chip 1301 to adjust the voltage value at the voltage detection pin FB. By adjusting the drive signal output by the second pin, the voltage value at the voltage detection pin FB can be flexibly adjusted, thereby indirectly adjusting the conduction and cutoff of the switch device 102. When the voltage value at the power input terminal V1 of the controller 104 is lower than the first preset voltage value, the controller 104 outputs a drive signal through the second pin to drive the voltage adjustment circuit 106 to reduce the voltage value at the voltage detection pin FB, so that the duty cycle of the PWM signal output by the control pin GATE is reduced, the cutoff time of the switch device 102 is increased, and the voltage duration at the power input terminal is increased. The ability of the intelligent switch to obtain current from the line is improved, thereby improving the compatibility between the intelligent switch and the intelligent lamp.

[0088] In addition, the positions of the two terminals L and N in the drawings provided by the present disclosure are for illustration only, and L and N can be swapped according to actual conditions during implementation. In the embodiments of the present disclosure, "connection" can represent a direct connection or an indirect connection. In order to ensure the safe operation of the circuit, components such as resistors, capacitors, and diodes can be added between the two "connected" components as needed. For example, when the other end of the electric control switch 101 is connected to the power pin of the switch-connected power-taking chip 1031, it can be an indirect connection, that is, in order to make the circuit work more stably, a diode can be added between the other end of the electric control switch 101 and the power pin of the switch-connected power-taking chip 1031 to avoid the power supply voltage being higher than the voltage at the end of the electric control switch, and the subsequent power supply will be discharged, causing the main control and other circuits to fail to work. The same is true for other components, which will not be repeated here.

[0089] In another embodiment provided by the present disclosure, Figure 3 As shown, the voltage collection circuit 105 includes: a first voltage-dividing resistor R1 and a second voltage-dividing resistor R2;

[0090] One end of the first voltage-dividing resistor R1 is connected to the power input terminal; the other end of the first voltage-dividing resistor R1 is connected to the first pin; one end of the second voltage-dividing resistor R2 is connected to the other end of the first voltage-dividing resistor R1; the other end of the second voltage-dividing resistor R2 is set to the same potential.

[0091] In the embodiment of the present disclosure, as described above, the controller 104 acquires the voltage value at the power input terminal V1 in real time through the voltage acquisition circuit 105. Since the voltage that the controller 104 can withstand is limited, if the controller 104 directly obtains the voltage at V1, it may cause damage. Therefore, the controller 104 can obtain the voltage that it can withstand through the first pin by voltage division, so as to determine the voltage at V1 by calculation. Assuming that the voltage value of the first pin is V2, then V1=V2*(R1+R2) / R2, and the controller 104 obtains the voltage value at the power input terminal V1 by calculation.

[0092] Furthermore, the first pin can use a general purpose input / output (GPIO) pin, and the general purpose input / output pin can input an analog signal or a digital signal. In one embodiment, the controller 104 includes an analog / digital converter (ADC), and an analog signal can be input through the first pin, and the analog signal is converted by its own ADC, and the converted digital signal is processed; in another embodiment, an analog / digital converter is connected between the other end of the first voltage-dividing resistor R1 and the first pin, and the analog / digital converter can convert the analog signal into a digital signal, and the first pin inputs the converted digital signal for controller identification processing.

[0093] In another embodiment provided by the present disclosure, Figure 3 As shown, the switch connected power circuit 103 also includes an auxiliary circuit 1032; the auxiliary circuit 1032 includes: a third voltage-dividing resistor R3 and a fourth voltage-dividing resistor R4; the voltage regulating circuit 106 includes a first regulating resistor R5; the driving signal includes a low-level signal;

[0094] One end of the third voltage-dividing resistor R3 is connected to the other end of the electronically controlled switch 101, and the other end of the third voltage-dividing resistor R3 is connected to the voltage-dividing detection pin FB;

[0095] One end of the fourth voltage-dividing resistor R4 is connected to the other end of the third voltage-dividing resistor R3, and the other end of the fourth voltage-dividing resistor R4 is set to be at the same potential;

[0096] One end of the first regulating resistor R5 is connected to the voltage division detection pin FB; the other end of the first regulating resistor R5 is connected to the second pin of the controller 104;

[0097] The controller 104 is used to output a low-level signal through the second pin when the collected voltage value V1 is lower than the first preset voltage value, so that the first regulating resistor R5 and the fourth voltage-dividing resistor R4 are connected in parallel, and the voltage value obtained at the voltage-dividing detection pin FB is reduced, thereby controlling the cut-off time of the switch device 102 to increase, thereby increasing the voltage duration at the power input terminal V1;

[0098] The controller 104 is also used to set the second pin to a high impedance state when the collected voltage value V1 is greater than or equal to the first preset voltage value, and the voltage division of the third voltage-dividing resistor R3 and the fourth voltage-dividing resistor R4 is restored to normal, thereby restoring the voltage duration at the power input terminal V1.

[0099] In the disclosed embodiment, a first regulating resistor R5 is added, and the first regulating resistor R5 is connected to the second pin of the controller 104. The second pin of the controller 104 can use a general purpose input / output (GPIO) pin, which can output a low-level signal, a high-level signal, and a high-impedance state. The high-impedance state refers to a state in a circuit, in which the output end of the circuit presents a very high resistance, similar to an open circuit state. In this state, the circuit neither provides current nor absorbs current.

[0100] The controller 104 obtains the voltage value V1 collected by the voltage collection circuit 105, which is lower than the first preset voltage value, indicating that the load power of the intelligent lamp is gradually decreasing, and the current at the power input terminal is about to be insufficient to supply power to the controller. In this case, the controller 104 outputs a low-level signal through the second pin, and the switch power supply circuit enters the enhanced power supply mode. At this time, the first regulating resistor R5 is connected in parallel with the fourth voltage-dividing resistor R4, and the resistance value after parallel connection is R4_2=(R4*R5) / (R4+R5). For example, the fourth voltage-dividing resistor R4=20KΩ, the first regulating resistor R5=20KΩ, then the resistance value after parallel connection is R4_2=10KΩ, thereby reducing the voltage division of the third voltage-dividing resistor R3 and the fourth voltage-dividing resistor R4, that is, reducing the voltage value at the voltage-dividing detection pin FB, and the duty cycle of the PWM signal output by the control pin GATE of the switch connected power supply chip 1301 is reduced, increasing the cut-off time of the switch device 102, thereby increasing the voltage duration at the power input terminal V1, and improving the ability of the intelligent switch to obtain current from the line.

[0101] The controller 104 obtains that the voltage value V1 collected by the voltage collection circuit 105 is greater than or equal to the first preset voltage value, indicating that the load power of the smart lamp is gradually increasing at this time, and there is sufficient current at the power input terminal to power the controller 104. In this case, the controller 104 outputs a high-impedance state through the second pin, and the first adjustment resistor R5 is in an open circuit state. The voltage division of the third voltage-dividing resistor R3 and the fourth voltage-dividing resistor R4 returns to normal. The duty cycle of the PWM signal output by the control pin GATE of the switch connected power-taking chip 1301 increases, and the cut-off time of the switching device 102 is reduced, thereby restoring the voltage duration at the power input terminal V1, so that the switch power-taking circuit returns to normal mode as soon as possible to prevent the voltage at the power input terminal V1 from being too high, causing damage to components.

[0102] The switch device 102 may use a metal-oxide-semiconductor field-effect transistor (MOSFET). One end of the gate of the MOSFET is the control end, connected to the control pin GATE, the source is connected to the other end of the electric control switch 101, and the drain is connected to the other end L of the two terminals. In the absence of a gate voltage, the source and the drain are cut off (non-conductive). When the gate voltage is higher than the threshold voltage, a conductive channel (called an "inversion layer") is formed on the semiconductor surface below the oxide layer, allowing current to flow from the source to the drain. An ordinary diode D1 is connected in parallel to both ends of the MOSFET tube, the anode of the ordinary diode D1 is connected to the other end L of the two terminals, and the cathode of the ordinary diode D1 is connected to the other end of the electric control switch 101. For example, in the positive half cycle of the alternating current, the voltage value of the other end L of the two terminals is higher than the voltage value of one end N of the two terminals, and the ordinary diode D1 is turned on. At this time, the switch is connected to the power-taking circuit 103 and does not supply power to the controller 104; in the negative half cycle of the alternating current, the voltage value of the other end L of the two terminals is lower than the voltage value of one end N of the two terminals. When the MOSFET tube is turned on, no power is supplied to the controller 104, and when the MOSFET tube is turned off, power is supplied to the controller 104.

[0103] In another embodiment provided by the present disclosure, Figure 3 , Figure 4 As shown, the switch is connected to the power-taking chip 1301, and is used to control the switch device 102 to be cut off through the control pin GATE if the voltage value at the voltage-dividing detection pin FB is less than the second preset voltage value when the first regulating resistor R5 and the fourth voltage-dividing resistor R4 are connected in parallel; if the voltage value at the voltage-dividing detection pin FB is greater than or equal to the third preset voltage value, the switch device 102 is controlled to be turned on through the control pin FB.

[0104] In the disclosed embodiment, the second preset voltage value and the third preset voltage value are used to adjust the duty cycle of the PWM signal output by the control pin GATE. If the voltage value after the voltage division of the resistor R4_2 and the third voltage division resistor R3 formed by the first regulating resistor R5 and the fourth voltage division resistor R4 in parallel is less than the second preset voltage value V_FB_L, the control pin GATE outputs a low level, and the switch device 102 will be cut off. If the voltage value is greater than the third preset voltage value V_FB_H, the control pin GATE outputs a high level, and the switch device 102 is turned on. The second preset voltage value and the third preset voltage value can be the same as the voltage threshold of the conventional design, or can be different from the voltage threshold of the conventional design according to the circuit design requirements.

[0105] In another embodiment provided by the present disclosure, Figure 3 , Figure 4 As shown, the resistance value R4_2 formed by the first regulating resistor R5 and the fourth voltage-dividing resistor R4 in parallel is inversely proportional to the cut-off time of the switch device 102 .

[0106] In the embodiment of the present disclosure, the smaller the resistance value of the first regulating resistor R5, the smaller the resistance value R4_2 formed by the first regulating resistor R5 and the fourth voltage-dividing resistor R4 in parallel, the lower the voltage value of the voltage-dividing detection pin FB after the resistor R4_2 formed by the first regulating resistor R5 and the fourth voltage-dividing resistor R4 in parallel and the voltage divided by the third voltage-dividing resistor R3, the smaller the duty cycle of the PWM signal output by the control pin GATE within one AC power cycle, and the longer the cut-off time of the switching device 102.

[0107] Based on the same disclosed concept, the embodiment of the present disclosure also provides an intelligent switch circuit, such as Figure 5 As shown, it includes: an electric control switch 101, a switch device 102, a switch connection power circuit 103, a controller 104, a voltage collection circuit 105 and a voltage regulation circuit 106 are arranged between two connection terminals L and N;

[0108] The switch connected to the power taking circuit 103 includes: the switch connected to the power taking chip 1031 (not shown in the figure);

[0109] One end of the electric control switch 101 is connected to one end N of the two wiring terminals; the other end of the electric control switch 101 is respectively connected to one end of the switch device 102, the power pin VIN of the switch connected power chip 1031 and the power input end of the controller 104;

[0110] The other end of the switch device 102 is connected to the other end L of the two wiring terminals; the control end of the switch device 102 is connected to the control pin GATE of the switch connected power chip 1031;

[0111] The switch connects the voltage-dividing detection pin FB of the power-taking chip 1031 to one end of the voltage regulating circuit 106 and one end of the voltage collecting circuit 105;

[0112] The other end of the voltage collection circuit 105 is connected to the first pin of the controller 104;

[0113] The other end of the voltage regulating circuit 106 is connected to the second pin of the controller 104;

[0114] The controller 104 is used to receive the voltage value at the voltage-dividing detection pin FB of the switch connected power-taking chip 1031 collected by the voltage collection circuit 105 through the first pin, and send a driving signal to the voltage regulating circuit 106 through the second pin when the collected voltage value is lower than the fourth preset voltage value;

[0115] The voltage regulating circuit 106 is used to adjust the voltage value at the voltage dividing detection pin FB of the switch connected to the power chip 1031 under the drive of the driving signal, so as to change the on-off time of the switch device 102, thereby increasing the voltage duration at the power input terminal V1.

[0116] In the embodiment of the present disclosure, since the voltage value at the voltage divider detection pin FB of the switch connected power-taking chip 1031 has a certain numerical relationship with the voltage value at the power input terminal V1, the controller 104 in the aforementioned embodiment directly obtains the voltage value at the power input terminal V1, and due to this numerical relationship, the controller 104 can also obtain the voltage value at the voltage divider detection pin FB, thereby realizing the monitoring of the voltage value at the power input terminal V1.

[0117] During implementation, a voltage collection circuit 105 can be connected between the voltage-dividing detection pin FB of the switch-connected power chip 103 and the first pin of the controller 104, and the voltage value change at the power input terminal V1 can be obtained in real time through the voltage value at the voltage-dividing detection pin FB. A voltage adjustment circuit 106 is connected between the second pin of the controller 104 and the voltage-dividing detection pin FB of the switch-connected power chip 1301 to adjust the voltage value at the voltage-dividing detection pin FB. Figure 6 As shown, the voltage value of the first pin is V2, then V1=V2*(R3+R4) / R4, and the controller 104 obtains the voltage value at the power input terminal V1 by calculation. When the voltage value at the power input terminal V1 is lower than the fourth preset voltage value, the second pin of the controller 104 outputs a low-level signal, the switch power-taking circuit enters the enhanced power-taking mode, the first regulating resistor R5 of the regulating voltage circuit 106 is connected in parallel with the fourth voltage-dividing resistor R4, and the voltage value obtained at the voltage-dividing detection pin FB is reduced, thereby controlling the cut-off time of the switch device 102 to increase, thereby increasing the voltage duration at the power input terminal V1, and improving the ability of the intelligent switch to obtain current from the line. The resistance value R4_2 after the first regulating resistor R5 and the fourth voltage-dividing resistor R4 are connected in parallel is R4_2=(R4*R5) / (R4+R5), and the voltage value V1 at the power input terminal V1 is V2*(R3+R4_2) / R4_2. When the voltage value V1 at the power input terminal is greater than or equal to a preset voltage threshold, the second pin of the controller 104 is set to a high-impedance state, the first regulating resistor R5 is in an open-circuit state, and the voltage division of the third voltage-dividing resistor R3 and the fourth voltage-dividing resistor R4 is restored to normal, thereby restoring the voltage duration at the power input terminal V1, so that the switch power supply circuit is restored to normal mode as soon as possible to prevent the voltage at the power input terminal V1 from being too high, causing damage to components.

[0118] In another embodiment provided by the present disclosure, Figure 3 and Figure 6As shown, the above intelligent switch circuit further includes: a protection circuit 107; the protection circuit 107 includes: a common diode D2, a protection resistor R6, and a voltage regulator diode ZD1;

[0119] The anode end of the common diode D2 is connected to the other end of the electric control switch 101; the cathode end of the common diode D2 is connected to one end of the protection resistor R6; the other end of the protection resistor R6 is connected to the cathode end of the voltage zener diode ZD1; the anode end of the voltage zener diode ZD1 is connected to the voltage division detection pin FB of the power chip 1031 connected to the switch;

[0120] The protection circuit 107 is used to control the voltage value at the voltage divider detection pin FB to a third preset voltage value when the second pin of the controller 104 continuously outputs a low-level signal so that the Zener diode ZD1 reaches the Zener voltage, thereby increasing the conduction time ratio of the switching device 102 and reducing the voltage duration at the power input terminal V1; the size of the Zener voltage is determined according to the voltage tolerance at the power input terminal.

[0121] In the disclosed embodiment, as described above, the second pin of the controller 104 outputs a low-level signal, and the switch power circuit 103 enters the enhanced power mode, increasing the voltage duration at the power input terminal. However, if a software failure occurs in the controller 104, causing the switch power circuit 103 to remain in the enhanced power mode, it will cause damage to components. In order to avoid this situation, a protection circuit 107 is connected between the other end of the electric control switch 101 and the switch connected power chip 1031. When the voltage value at the power input terminal V1 continues to rise and the voltage value across the ZD1 of the voltage regulator diode reaches the Zener voltage, the protection circuit 107 is turned on, otherwise the protection circuit 107 is turned off. When the protection circuit 107 is turned on, the voltage value at the voltage divider detection pin FB increases and maintains a stable voltage state, forming a negative feedback on the voltage value at the power input terminal V1, and the control pin GATE controls the switch device 102 to reduce the cut-off time, thereby reducing the voltage value at the power input terminal V1. That is, when in a voltage stabilization state, if the voltage at V1 rises, then after the voltage drops through the components D2, R6, and ZD1, the voltage at FB will also rise, thereby increasing the GATE conduction time and reducing the voltage at V1, thus protecting the circuit. Therefore, even if the controller 104 software fails, causing the switch power circuit 103 to be in the enhanced power mode, the protection circuit 107 will protect the voltage value at the power input terminal V1 within a safe range.

[0122] Based on the same disclosed concept, the embodiment of the present disclosure also provides an intelligent switch circuit, such as Figure 7As shown, it includes: an electric control switch 101, a switch device 102, a switch connection power circuit 103, a controller 104, a voltage adjustment circuit 106 and a protection circuit 107 are arranged between two connection terminals L and N;

[0123] The switch connected to the power taking circuit 103 includes: the switch connected to the power taking chip 1031 (not shown in the figure);

[0124] One end of the electric switch 101 is connected to one end N of the two wiring terminals; the other end of the electric switch 101 is respectively connected to one end of the switch device 102, the power pin VIN of the switch connected power chip 1031, one end of the protection circuit 107 and the power input end of the controller 104;

[0125] The other end of the switch device 102 is connected to the other end L of the two wiring terminals; the control end of the switch device 102 is connected to the control pin GATE of the switch connected power chip 1031;

[0126] The switch connects the voltage-dividing detection pin FB of the power-taking chip 1031 to one end of the voltage regulating circuit 106 and the other end of the protection circuit 107;

[0127] The other end of the voltage regulating circuit 106 is connected to the second pin of the controller 104;

[0128] The controller 104 is used to send a driving signal to the voltage regulating circuit 106 through the second pin;

[0129] The voltage regulating circuit 106 is used to adjust the voltage value at the voltage-dividing detection pin FB of the switch connected to the power-taking chip 1031 under the drive of the driving signal, so as to change the on-off time of the switch device 102, thereby increasing the voltage duration at the power input terminal V1;

[0130] The protection circuit 107 is used to change the on-off time of the switch device 102 and reduce the voltage duration at the power input terminal by maintaining the voltage value at the voltage-dividing detection pin FB when the voltage at the power input terminal continues to increase.

[0131] In the embodiment of the present disclosure, the voltage collection circuit 105 may not be provided, but the protection circuit 107 may directly adjust the voltage value at the voltage division detection pin FB when necessary according to the real-time status of the circuit.

[0132] As described above, a voltage regulating circuit 106 is connected between the second pin of the controller 104 and the voltage-dividing detection pin FB of the switch-connected power-taking chip 1301, for adjusting the voltage value at the voltage-dividing detection pin FB. Exemplarily, the voltage regulating circuit 106 may include a first voltage regulating resistor R5, one end of the first regulating resistor R5 is connected to the voltage-dividing detection pin FB; the other end of the first regulating resistor R5 is connected to the second pin of the controller 104. The second pin of the controller 104 continuously outputs a low-level signal, which reduces the voltage at the voltage-dividing detection pin FB, and the switch power-taking circuit 103 enters the enhanced power-taking mode, increasing the voltage duration at the power input terminal V1, and improving the ability of the intelligent switch to obtain current from the line. In the disclosed embodiment, the protection circuit 107 is connected between the other end of the electric control switch 101 and the switch connected power supply chip 1031. When the voltage value at the power input terminal V1 continues to rise, the protection circuit 107 is turned on, the voltage value at the voltage-dividing detection pin FB increases and maintains a stable voltage state, forming a negative feedback to the voltage value at the power input terminal V1, and the control pin GATE controls the cut-off time of the switch device 102 to reduce the voltage value at the power input terminal V1. Therefore, even if the switch power supply circuit 103 is always in the enhanced power supply mode, the protection circuit 107 will protect the voltage at the power input terminal within a safe range.

[0133] Based on the same disclosed concept, the embodiment of the present disclosure also provides an intelligent switch circuit, such as Figure 8 As shown, an electric control switch 101, a switch device 102, a switch connection power circuit 103, a controller 104 and a protection circuit 107 are arranged between two connection terminals L and N;

[0134] The switch connected power taking circuit 103 includes: the switch connected power taking chip 1031 and its auxiliary circuit 1032;

[0135] One end of the electric switch 101 is connected to one end N of the two wiring terminals; the other end of the electric switch 101 is respectively connected to one end of the switch device 102, one end of the protection circuit 107, the power pin VIN of the switch connected power chip 1031 and the power input end of the controller 104;

[0136] The other end of the switch device 102 is connected to the other end L of the two wiring terminals; the control end of the switch device 102 is connected to the control pin GATE of the switch connected power chip 1031;

[0137] The other end of the protection circuit 107 is connected to the voltage division detection pin FB of the switch connected power chip 1031;

[0138] The auxiliary circuit 1032 includes: a third voltage-dividing resistor R3 and a fourth voltage-dividing resistor R4; one end of the third voltage-dividing resistor R3 is connected to the other end of the electronically controlled switch 101, and the other end of the third voltage-dividing resistor R3 is connected to the voltage-dividing detection pin FB; one end of the fourth voltage-dividing resistor R4 is connected to the other end of the third voltage-dividing resistor R3, and the other end of the fourth voltage-dividing resistor R4 is set to the same potential; the resistance value of the fourth voltage-dividing resistor R4 is lower than that of the conventional design, and / or a resistor is connected in parallel to the fourth voltage-dividing resistor of the conventional design, so that the resistance value after parallel connection is lower than that of the conventional design;

[0139] The auxiliary circuit 1032 is used to adjust the voltage value at the voltage-dividing detection pin FB of the switch connected to the power-taking chip 1031, so as to change the on-off time of the switch device 102, thereby increasing the voltage duration at the power input terminal V1;

[0140] The protection circuit 107 is used to change the on-off time of the switch device 102 and reduce the voltage duration at the power input terminal V1 by maintaining the voltage value at the voltage division detection pin FB when the voltage at the power input terminal V1 continues to increase.

[0141] In the embodiment of the present disclosure, in order to further save resources, it is not necessary to add a voltage regulating circuit, but the auxiliary circuit 1032 is directly improved.

[0142] In the disclosed embodiment, the resistance value of the fourth voltage-dividing resistor R4 is lower than that of the conventional design, and / or, the fourth voltage-dividing resistor R4 is connected in parallel with a resistor, and the resistance value after parallel connection is lower than that of the conventional design, which reduces the voltage at the voltage-dividing detection pin FB, and the switch power-taking circuit 103 enters the enhanced power-taking mode, increases the voltage duration at the power input terminal V1, and improves the ability of the intelligent switch to obtain current from the line. The protection circuit 107 is connected between the other end of the electric control switch 101 and the switch connected power-taking chip 1031. When the voltage value at the power input terminal V1 continues to rise, the protection circuit 107 is turned on, and the voltage value at the voltage-dividing detection pin FB increases and maintains a stable voltage state, forming a negative feedback on the voltage value at the power input terminal V1, and the control pin GATE controls the cut-off time of the switch device 102 to reduce the voltage value at the power input terminal V1. Therefore, even if the switch power-taking circuit 103 is always in the enhanced power-taking mode, the protection circuit 107 will protect the voltage at the power input terminal within a safe range.

[0143] In another embodiment provided by the present disclosure, Fig. 9 , Fig.10 As shown, the protection circuit 107 includes: a common diode D2, a protection resistor R6, and a voltage stabilizing diode ZD1;

[0144] An anode end of the common diode D2 is connected to the other end of the electronically controlled switch 101; a cathode end of the common diode D2 is connected to one end of the protection resistor R6; the other end of the protection resistor R6 is connected to a cathode end of the voltage-stabilizing diode ZD1; an anode end of the voltage-stabilizing diode ZD1 is connected to the voltage-dividing detection pin FB;

[0145] The protection circuit 107 is used to control the voltage value at the voltage divider detection pin FB to a third preset voltage value when the voltage regulator diode ZD1 reaches the Zener voltage, increase the conduction time ratio of the switching device 102, and reduce the voltage duration at the power input terminal V1; the size of the Zener voltage is determined according to the voltage tolerance at the power input terminal.

[0146] In the disclosed embodiment, as described above, the switch power circuit 103 is always in the enhanced power mode, which increases the voltage duration at the power input terminal V1 and improves the ability of the intelligent switch to obtain current from the line. However, if it is always in the enhanced power mode, the voltage at the power input terminal V1 continues to rise, exceeding the voltage tolerance range at the power input terminal V1, which will cause damage to components. In order to avoid this situation, the protection circuit 107 is connected between the other end of the electric control switch 101 and the switch connected power chip 1031. When the voltage value at the power input terminal V1 continues to rise and the voltage value across the ZD1 of the voltage regulator diode reaches the Zener voltage, the protection circuit 107 is turned on, otherwise the protection circuit 107 is turned off. When the protection circuit 107 is turned on, the voltage value at the voltage divider detection pin FB increases and maintains a stable voltage state, forming a negative feedback on the voltage value at the power input terminal V1, and the control pin GATE controls the switch device 102 to reduce the cut-off time, thereby reducing the voltage value at the power input terminal V1. Therefore, even if the switch power circuit 103 is always in the enhanced power mode, the protection circuit 107 will protect the voltage at the power input terminal within a safe range.

[0147] In an embodiment of the present disclosure, a smart wall switch is provided, comprising: a switch panel, wherein the smart switch circuit described in any of the above embodiments is arranged inside the wall covered by the switch panel.

[0148] The embodiments of the present disclosure provide a smart switch control circuit and a smart wall switch, which increase the voltage duration at the power input terminal, improve the ability of the smart switch to obtain current from the line, and thus improve the compatibility between the smart switch and the smart lamp.

[0149] Through the description of the above implementation methods, those skilled in the art can clearly understand that the embodiments of the present disclosure can be implemented by hardware, or by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0150] Those skilled in the art will appreciate that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present disclosure.

[0151] Those skilled in the art can understand that the modules in the device in the embodiment can be distributed in the device in the embodiment according to the description of the embodiment, or can be changed accordingly and located in one or more devices different from the present embodiment. The modules in the above embodiment can be combined into one module, or can be further divided into multiple sub-modules.

[0152] The serial numbers of the above-mentioned embodiments of the present disclosure are only for description and do not represent the advantages or disadvantages of the embodiments.

[0153] Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

1. An intelligent switch circuit, characterized in that: include: An electric control switch, a switch device, a switch connecting a power taking circuit, a controller, a voltage collecting circuit and a voltage regulating circuit are arranged between the two wiring terminals; The switch connecting the power taking circuit comprises: the switch connecting the power taking chip; One end of the electronically controlled switch is connected to one end of the two wiring terminals; the other end of the electronically controlled switch is respectively connected to one end of the switch device, the power pin of the power-taking chip connected to the switch, one end of the voltage collection circuit and the power input end of the controller; The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip; The switch is connected to the voltage division detection pin of the power taking chip and one end of the voltage regulating circuit; The other end of the voltage collection circuit is connected to the first pin of the controller; The other end of the voltage regulating circuit is connected to the second pin of the controller; The controller is used to receive the voltage value at the power input terminal collected by the voltage collection circuit through the first pin; and send a driving signal to the voltage regulation circuit through the second pin when the collected voltage value is lower than the first preset voltage value; The voltage regulating circuit is used to adjust the voltage value at the voltage dividing detection pin of the switch connected to the power-taking chip under the drive of the driving signal, so as to change the on-off time of the switching device and thereby increase the voltage duration at the power input terminal.

2. The circuit according to claim 1, characterized in that The voltage collection circuit comprises: a first voltage-dividing resistor and a second voltage-dividing resistor; One end of the first voltage-dividing resistor is connected to the power input terminal; the other end of the first voltage-dividing resistor is connected to the first pin; One end of the second voltage-dividing resistor is connected to the other end of the first voltage-dividing resistor; the other end of the second voltage-dividing resistor is set to be at the same potential.

3. The circuit according to claim 1, characterized in that The switch connected power taking circuit also includes an auxiliary circuit; the auxiliary circuit includes: a third voltage dividing resistor and a fourth voltage dividing resistor; the voltage regulating circuit includes a first regulating resistor; the driving signal includes a low level signal; One end of the third voltage-dividing resistor is connected to the other end of the electronically controlled switch, and the other end of the third voltage-dividing resistor is connected to the voltage-dividing detection pin; One end of the fourth voltage-dividing resistor is connected to the other end of the third voltage-dividing resistor, and the other end of the fourth voltage-dividing resistor is set to an equal potential; One end of the first regulating resistor is connected to the voltage division detection pin; the other end of the first regulating resistor is connected to the second pin of the controller; The controller is used for outputting a low-level signal through the second pin when the collected voltage value is lower than the first preset voltage value, so that the first regulating resistor and the fourth voltage-dividing resistor are connected in parallel, and the divided voltage value at the voltage-dividing detection pin is reduced, thereby controlling the cut-off time of the switching device to increase, thereby increasing the voltage duration at the power input terminal; The controller is also used to set the second pin to a high impedance state when the collected voltage value is greater than or equal to the first preset voltage value, and the voltage division of the third voltage-dividing resistor and the fourth voltage-dividing resistor is restored to normal, thereby restoring the voltage duration at the power input terminal.

4. The circuit according to claim 3, characterized in that The switch is connected to the power-taking chip and is used to control the switch device to be cut off through the control pin if the voltage value at the voltage-dividing detection pin is less than the second preset voltage value when the first adjustment resistor and the fourth voltage-dividing resistor are connected in parallel; if the voltage value at the voltage-dividing detection pin is greater than or equal to the third preset voltage value, the switch device is controlled to be turned on through the control pin.

5. The circuit according to claim 3 or 4, characterized in that The resistance value formed by the first regulating resistor and the fourth voltage-dividing resistor being connected in parallel is inversely proportional to the cut-off time of the switching device.

6. An intelligent switch circuit, characterized in that: include: An electric control switch, a switch device, a switch connecting a power taking circuit, a controller, a voltage collecting circuit and a voltage regulating circuit are arranged between the two wiring terminals; The switch connecting the power taking circuit comprises: the switch connecting the power taking chip; One end of the electric control switch is connected to one end of the two wiring terminals; the other end of the electric control switch is respectively connected to one end of the switch device, the power pin of the switch connected to the power chip and the power input end of the controller; The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip; The switch connects the voltage division detection pin of the power taking chip to one end of the voltage regulating circuit and one end of the voltage collecting circuit; The other end of the voltage collection circuit is connected to the first pin of the controller; The other end of the voltage regulating circuit is connected to the second pin of the controller; The controller is used to receive the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip collected by the voltage collection circuit through the first pin, and send a driving signal to the voltage regulation circuit through the second pin when the collected voltage value is lower than a fourth preset voltage value; The voltage regulating circuit is used to adjust the voltage value at the voltage dividing detection pin of the switch connected to the power-taking chip under the drive of the driving signal, so as to change the on-off time of the switching device and thereby increase the voltage duration at the power input terminal.

7. The circuit according to claim 1 or 6, characterized in that Also includes: Protection circuit; The protection circuit includes: a common diode, a protection resistor, and a voltage-stabilizing diode; One end of the anode of the common diode is connected to the other end of the electric control switch; one end of the cathode of the common diode is connected to one end of the protection resistor; the other end of the protection resistor is connected to one end of the cathode of the voltage-stabilizing diode; one end of the anode of the voltage-stabilizing diode is connected to the voltage-dividing detection pin of the power-taking chip connected to the switch; The protection circuit is used to control the voltage value at the voltage divider detection pin to a third preset voltage value when the second pin of the controller continuously outputs a low-level signal so that the voltage regulator diode reaches the Zener voltage, thereby increasing the conduction time ratio of the switching device and reducing the voltage duration at the power input terminal; the size of the Zener voltage is determined according to the voltage tolerance capacity at the power input terminal.

8. An intelligent switch circuit, characterized in that: include: An electric control switch, a switch device, a switch connection power taking circuit, a controller, a voltage regulating circuit and a protection circuit are arranged between the two wiring terminals; The switch connecting the power taking circuit comprises: the switch connecting the power taking chip; One end of the electric control switch is connected to one end of the two wiring terminals; the other end of the electric control switch is respectively connected to one end of the switch device, the power pin of the switch connected to the power chip, one end of the protection circuit and the power input end of the controller; The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip; The switch connects the voltage division detection pin of the power taking chip with one end of the voltage regulating circuit and the other end of the protection circuit; The other end of the voltage regulating circuit is connected to the second pin of the controller; The controller is used to send a driving signal to the voltage regulating circuit through the second pin; The voltage regulating circuit is used to adjust the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip under the drive of the driving signal, so as to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal; The protection circuit is used to change the on-off time of the switching device and reduce the voltage duration at the power input terminal by maintaining the voltage value at the voltage division detection pin when the voltage at the power input terminal continues to increase.

9. An intelligent switch circuit, characterized in that: include: An electric control switch, a switch device, a switch connection power circuit, a controller and a protection circuit are arranged between the two connection terminals; The switch connecting the power-taking circuit includes: the switch connecting the power-taking chip and its auxiliary circuit; One end of the electronically controlled switch is connected to one end of the two wiring terminals; the other end of the electronically controlled switch is respectively connected to one end of the switch device, one end of the protection circuit, the power pin of the switch connected to the power chip, and the power input end of the controller; The other end of the switch device is connected to the other end of the two wiring terminals; the control end of the switch device is connected to the control pin of the switch connected power supply chip; The other end of the protection circuit is connected to the voltage division detection pin of the power taking chip connected to the switch; The auxiliary circuit comprises: a third voltage-dividing resistor and a fourth voltage-dividing resistor; one end of the third voltage-dividing resistor is connected to the other end of the electronically controlled switch, and the other end of the third voltage-dividing resistor is connected to the voltage-dividing detection pin; one end of the fourth voltage-dividing resistor is connected to the other end of the third voltage-dividing resistor, and the other end of the fourth voltage-dividing resistor is set to an equal potential; the resistance value of the fourth voltage-dividing resistor is lower than that of a conventional design, and / or a resistor is connected in parallel to the fourth voltage-dividing resistor of a conventional design, so that the resistance value after parallel connection is lower than that of the conventional design; The auxiliary circuit is used to adjust the voltage value at the voltage-dividing detection pin of the switch connected to the power-taking chip, so as to change the on-off time of the switch device, thereby increasing the voltage duration at the power input terminal; The protection circuit is used to change the on-off time of the switching device and reduce the voltage duration at the power input terminal by maintaining the voltage value at the voltage division detection pin when the voltage at the power input terminal continues to increase.

10. The circuit according to claim 8 or 9, characterized in that The protection circuit includes: a common diode, a protection resistor, and a voltage-stabilizing diode; An anode end of the common diode is connected to the other end of the electronically controlled switch; a cathode end of the common diode is connected to one end of the protection resistor; the other end of the protection resistor is connected to a cathode end of the voltage-stabilizing diode; an anode end of the voltage-stabilizing diode is connected to the voltage-dividing detection pin; The protection circuit is used to control the voltage value at the voltage divider detection pin to a third preset voltage value when the voltage regulator diode reaches the Zener voltage, increase the conduction time ratio of the switching device, and reduce the voltage duration at the power input terminal; the size of the Zener voltage is determined according to the voltage tolerance capacity at the power input terminal.

11. A wall intelligent switch, characterized in that: include: A switch panel, wherein the wall covered by the switch panel is provided with the intelligent switch circuit as described in any one of claims 1 to 10.

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